A 12-week, city-wide consultation on the future of Bristol's libraries is to begin in November.
Bristol City Council said it needed to cut £1.1m from the library budget, by redesigning the service.
It said only 5.6% of the city and surrounding area's 437,500 population used its library services, meaning it spent £208 a year on each user.
Councillor Gus Hoyt said the consultation would enable users to offer their "ideas and suggestions".
"We'll be out in your communities talking about libraries and finding out what you like and what might be missing," he said.
People are also invited to give feedback by completing a survey on the council's website, in November.
After the consultation results are collated in March, the council expects to make a decision on a possible library restructure in June.